Plow-stock.



C. M. WINDHAM.

PLOW STOCK.

APPLICATION FILED IIINE ao. I9Is,

1,277,015. n Patented Aug. v7, 191s.

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INVENTOR wITNEssEs M ATTORN EY CALVIN IVI. WINDHAM, OF LAMAR, SOUTHCAROLINA.

PLOW-STOCK.

Specification of Letters Patent.

Patented Aug. 27, 1918.

Application led June 3D, 1916. Serial No. 106,912.

To all wwm t may concern:

Be it known that I, CALVIN M. VINDHAM, citizen of the United States,residing at Lamar, in the county of Darlington and State of SouthCarolina, have invented certain new and useful Improvements in Plow-Stocks, of which the following is a speciiication.

This invention relates to plow stocks and has for its object to providean improved agricultural implement of this class in which the plow ormold board standard is pivotally connected to the beam, and has meanswhereby it may be angularly changed with relation to said beam and aftersuch change to be tightened in order to hold the same firmly in adjustedposition.

In the accompanying drawings:

Figure 1 is a side elevation of a portion of the rear of a plow with myinvention applied thereto;

Fig. 2 is a horizontal sectional view on the line 2 2 of Fig. 1; and

Fig. 3 is a vertical sectional view on the line 3 3 of Fig. l.

In the drawings, 10 indicates the plow beam which may be made of wood ormetal as desired, and when made of metal, the same may comprise twomembers 11 and 12 suitably secured together-and to which the handles 13are attached and supported by braces 14. Between the members 11 and 12of the plow beam is pivoted the plow standard 15, which may also be madeeither of wood or metal, and when made of the latter material is madedouble, the two portions being in contact at their upper ends andkconnected to the plow beam by a. pivot bolt 1G. The parts forming themetal standard are spaced a short distance from each other at theirlower ends, as at 17, and within this space projects the hooked endfastening' bolt 35 of the plow share 36, a portion only of which isshown.

Pivoted to one side of the standard l5, and when made of metal betweenthe parts thereof in the space 17 if desired, is an adjusting rod 18having an eye 19 on its forward end through which a hinge bolt 20 passesto pivotally connect the bar to the standard. This rod has a slightupward curvature as it extends rearwardly and then continues in astraight line, Vthe straight portion being threaded as at 21.

Bolted to the plow beam 10 on the under side thereof in rear of thestandard 15 is a bracket 22 having two downwardly depending ears 23 thatare spaced a short distance apart, and each provided with a circularopening formed therethrough for the pas sage of the rod 18. Between theears 23 is a wheel 24:, known as a jack wheel having a hub 25 projectingfrom each side and fitting between the two ears 23. Through the axis ofthe wheel 24 and its hub 25 is an opening provided with a screw threadthat fits the threaded end of the rod 18 and when said wheel is turned,the rod 18 is caused to move horizontally either forwardly or rearwardlydepending on the direction in which the wheel is rotated.

Extending downwardly from the beam l0 at the rearend thereof andparallel to the standard 15 are a pair of iat bars 26 parallel to eachother and spaced a short distance apart, said bars being pivotedk by abolt or rivet 10u to the plow beam at their upper ends and at theirlower ends at 26@L to a horizontal subsoil plate 27, preferably oftriangular shape with one edge 28 parallel with the beam 10 and forminga land side, while the opposite edge 29 is inclined from a point at thefront, as shown. The forward end of the plate 27 is pivoted as shown tothe lower end of the standard 15. The rear edges of the bars 26 areformed with a number of ratchet-teeth 30 with which a locking dog 31 onthe mold board tightening lever 32 engages. This lever 22 formed of astraight bar as shown, on the forward end of which is a depending lug 37through which is formed a perforation to receive a removable pin 3Sadapted to fasten the forward end of the lever' 32 to the lower end ofthe standard 15. As shown, the lower end of the standard curvesforwardly at its lower end and through the two parts thereof near therear edge of the standard is formed a series of perforations 39 for theremovable pin 38, whereby the pivotal end of the lever 32 may beadjusted to various heights above the ground in order to adapt the leverto engage by means of a hook 10 that extends upwardly above the lug 37the hooked end 41 of the mold board fastening bolt 35. In securing amold board in place, the latter is placed against the forward edge ofthe standard 15 and the bolt 35 thereof extended into the rspace 17between' the parts of the standard and is there engaged by the hook 40on the lever 32. After positioning the mold board to the proper height,the pivot pin 3S is passed through the opening in the lug 37 to securethe forward end of the lever 32 in pivotal engagement with the standard.Upon depressing the rear end of the lever 82, it is evident that thehook a() will d 'aw the bolt 35 rearwardly and press the mold boardfirmly against the standard l5, the parts thus described being held inposition by means of a locking dog 3l on the rear end of the lever 32engaging one of the series of teeth 30 on the standard 26. When it isdesired to release the mold board, the operator grasps the hand-grip 33on the lever 32 and pressing the pivotal portion of the dog 31 withdrawsthe latter from the teeth 30 and raises the lever, thus loosening theconnection between the hook el() on said lever and the bolt 35 and atthe same time loosening` the mold board so that it can, withoutdiiiiculty, be removed from the standard l5.

lVhat l claim is:

l. ln a plow stock, the combination with a plow beam, of a plowsharesupporting standard pivoted at its upper end directly to said beam, athreaded rod pivoted on said standard below the beam, a wheel-nut onsaid rod for moving the same and the standard forwardly and rearwardlyon its pivot, and independent locking means for holding the standard inposition after adjustinent.

2. In a plow stock, the combination with a plow beam, of a plow sharesupporting standard pivotally connected at its upper end to said beam, athreaded rod pivoted to the standard below the beam and extendingrearwardly therefrom, a. bracket depending from the beam through whichsaid rod iS adapted to slide freely, a. wheel-nut threaded on said rodbearing at each side against said bracket for moving said rod and thestand ard forwardly and rearwardly when said nut is turned in onedirection or the other, and means distinct from said rod and nut forlocking the. standard immovable after adjustment.

3. ln a plow stock, the combination of beam and a standard pivotallymounted at its upper end upon said beam, a depending bar pivotallyconnected to the rear end of said beam, a sub-soil plate pivotallyconnected to said standard and said bar, a rod pivotally mounted on thestandard and extending rearwardly therefrom, said rod being threadeduponthe rear end, a bracket depending upon the underside of said beamthrough which said rod is adapted to pass freely, and a wheel-nutthreaded on said rod Jfor moving the same when turned to adjust thestandard forwardly and rearwardly on its pivot, said wheel-nut beingheld by the bracket from moving longitudinally on said rod.

et. ln a plow stock, the combination of a beam and a standard pivotallymounted upon said beam, a bar depending from the rear end of said beam,a subsoil pla-te connected to said standard and said bar, a leverpivotally mounted at its forward end to said standard and having a hookon said end above itsl pivotal point, connecting means between said hookand the mold board, and locking means on the opposite end of said leverand adapted to engage said bar to hold said lever in position aftermoving the latter to tighten the mold board on the standard.

5. ln a plow stock, the combination of a beam and a standard pivotallymounted on said beam, a mold board adapted to .be secured to the frontof said beam and having a rearward projection, a lever pivotally mountedat one end to said standard, said pivotal mounting being verticallyadjustable on the standard, a hook projecting upwardly from the leverabove the pivotal connection and adapted to engage the rear projectionon the mold board, said lever serving when depressed to clamp the moldboard to the standard. and means on said lever to hold the same indepressed position.

6. ln a plow stock, the combination of a plow beam and a plow standardpivoted to said beam and extending downwardly therefrom, a bar fastenedto the rear end of said beam and also extending downwardly, a sub-soilplate fixed to said standard and said bar, :a rod pivotally connected tothe standard and extending rearwardly therefrom, the rear end of saidbar being threaded, a bracket depending from the underside of said beamand having two ears through which said rod passes freely. a wheel-nutthreaded on said rod lbetween said ears and adapted when rotated to moveIsaid rod longitudinally and with it said standard, a tightening leverpivoted at one end to said standard below the rod and engaging the moldboard, and means on the opposite end of said lever adapted to en gagethe vertical bar and hold the mold board tight against the standard.

ln testimony whereof l athx my signature in presence of two witnesses.

UALVN M. VINDHAM.

l.Witnesses R. L. SPEARS, G. C. YVINDHAM.

Copies of this patent may oe obtained for live cents each, by addressingthe Commissioner of atents, Washington, U.

